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lesantik [10]
2 years ago
14

5x-7=4 ------ 7 где полосочки это дробная черта

Mathematics
1 answer:
otez555 [7]2 years ago
4 0

Answer:

5x-6+7

That's the answer

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Combine like terms to write a simplified expression: <br><br> 12p + 11 - 5p + 3
liubo4ka [24]

Answer:

7p + 14

Step-by-step explanation:

add 12p and -5p to get 7p

then add 11 and 3 to get 14

your equation will be 7p + 14

7 0
3 years ago
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How many solutions are there to
Alika [10]

Answer:

C

Step-by-step explanation:

there are infinitely many solutions since different values of x and y will work for this simultaneous equation

8 0
3 years ago
Need an answer for question 7 HURRY PLEASE 20 POINTS
Andrei [34K]

Answer:

2x^2 = 6x - 5.

-x^2 - 10x = 34.

These have only complex roots/

Step-by-step explanation:

3x^2 - 5x = -8

3x^2 - 5x + 8 = 0

There are complex roots if the discriminant  9b^2 - 4ac) is negative.

Here the discriminant D = (-5)^2 - 4*-5*8 = 25 + 160

This is positive so the roots are real.

2x^2 = 6x - 5

2x^2 - 6x + 5 = 0

D = (-6)^2 - 4*2*5 =  36 - 40 = -4

So this has no real roots only complex ones.

12x = 9x^2 + 4

9x^2 - 12x + 4 = 0

D = (-12)^2 - 4*9 * 4 = 144 - 144 = 0.

- Real roots.

-x^2 - 10x = 34

x^2 + 10x + 34 = 0

D = (10)^2 - 4*1*34 = 100 - 136 = -36.

No real roots = only complex roots.

7 0
3 years ago
I need help with this question. Please someone help me please.
aalyn [17]

I believe your answer would be B, Bisect AB, but not be perpendicular to it.

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